Sounds like you just bought a home run hitter, get that thing lettered up and make sure the whole set up is clean and easy to identify and go drive it around. A vast majority of people can figure out what a leaf loader is and what it does just by seeing it. Get it out there and get them to see it and they will begin to associate you with the fall task they dread the most. If properly applied I bet you could land more jobs from people seeing the setup than with an EDDM campaign.

If you can pass out the flyers by hand (or your employees) there is a higher ROI on that than EDDM. Plus the flyers cost less. If the houses are real far apart, or gated, than doing EDDM makes sense.
Good luck